Home / 115,275.23-159,076.64-64,289.51

Finding the Fourth Proportional to 115,275.23, 159,076.64 and 64,289.51

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Solution

The fourth proportional to 115,275.23, 159,076.64 and 64,289.51 is: 88,717.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,275.23 : 159,076.64 = 64,289.51 : x
  2. Step 2: Convert to fraction form
    115,275.23/159,076.64 = 64,289.51/x
  3. Step 3: Cross multiply
    115,275.23x = 159,076.64 × 64,289.51
  4. Step 4: Simplify right side
    115,275.23x = 10,226,958,121.22
  5. Step 5: Solve for x
    x = 10,226,958,121.22/115,275.23
  6. Step 6: Final answer
    x = 88,717.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.